Catheter retainer



FIG. 1 is a perspective view of a catheter retainer configured in accordance with the present invention;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken line showing is included for the purpose of illustrating portions of the catheter retainer and forms no part of the claimed design. 

The ornamental design for a catheter retainer, as shown and described. 